CalebBriggs is a wonderful name. It goes well with your sibset, and last name. Ian and Aaron are too much with the last name, though they are nice with the middle name. PhilipBriggs is nice too (i know it wasn't one of the combos you listed, but i REALLY like Briggs, esp since it's a family name).
My choices would be in this order CalebBriggs, PhilipBriggs, CalebRaleigh.
Good luck!